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    @TheWell There is a wiring error in...

    @TheWell
    There is a wiring error in chipaudette's picture you used.

    https://forum.pjrc.com/threads/57341-Bad-wiring-posted-somewhere-for-Teesny-4-0-to-Audio-Shield?p=213469&viewfull=1#post213469...
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    Yah, mine would be a T6:(

    Yah, mine would be a T6:(
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    no, here's from post...

    no,


    here's from post https://forum.pjrc.com/threads/58155-Two-bytes-to-floating-point-number?p=219986&viewfull=1#post219986
    highword 65022 lowword 7616 result -123.456
    highword 255 lowword...
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    There must be an easier way: float...

    There must be an easier way:

    float thevalue(uint16_t highword, uint16_t lowword){
    int8_t expo = highword>>8;
    int32_t mant = ((int32_t)((int16_t)(highword<<8))<<8)+lowword;
    float...
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    This is not a 'fake' security thing. This is...

    This is not a 'fake' security thing. This is circumventing all the work Apple does to help developers make their code and your computer secure. Unfortunately, most open source developers don't use...
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    As noted above I have tried to set the highest...

    As noted above I have tried to set the highest security settings.

    Unfortunately, Full Disk Access is required.
    Accessibility is not required.
    Input Monitoring is requested once at App startup...
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    I can report that today after doing nothing more...

    I can report that today after doing nothing more than having the Mac sleep overnight, not turned off, Catalina, Arduino 1.8.10, and Teensduino 1.48 seem to be happy again. Perhaps all the...
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    Sticky: Warning: don't install MacOS 10.15 Catalina,...

    Warning: don't install MacOS 10.15 Catalina, you may regret it.

    https://forum.pjrc.com/threads/58000-MacOS-10-15-Catalina?p=218835&viewfull=1#post218835
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    Just made the mistake of updating Mac to 10.15. ...

    Just made the mistake of updating Mac to 10.15. I looked around in the forum first but missed this thread. dang!

    The @Theremingenieur and @Balum methods don't work for me. I can't get the...
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    On Mac 10.14.6, Arduino 1.8.10, T1.48b2 the...

    On Mac 10.14.6, Arduino 1.8.10, T1.48b2 the monitor window looks reasonably disabled and allows copying when unplugged, Yaa!! Have to admit that feels kind of weird copying from a dead window, but...
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    works for me on a Mac also. thanks

    works for me on a Mac also.

    thanks
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    Commenting out the differences in startup.c...

    Commenting out the differences in startup.c between 1.8.9 and 1.8.10 seems to fix the problem.
    17665
    No idea what it's meant to do or any other effects.
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    @Kurt, Thanks, thought I was being ignored. But...

    @Kurt,
    Thanks, thought I was being ignored. But wait !! Another clue !!

    DemoSauce.ino runs on 1.8.10 if I set optimize to "Smallest Code" !

    This also makes the rest of my programs work that...
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    I have narrowed down a T4 crash with...

    I have narrowed down a T4 crash with Arduino1.8.10 TD1.48b1 a little more. After re-installing Arduino1.8.10 and TD1.48b1 the issues I was having in many programs went away (as should be expected if...
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    At message #47 I said 1.8.9 works with 1.48b1. ...

    At message #47 I said 1.8.9 works with 1.48b1. That not quit a correct statement. The 1.8.9 used 1.47 for it's initial TD installation. It works correctly with the 1.48b1 TD not necessarily the...
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    Here's the Teensy verbose output showing the port...

    Here's the Teensy verbose output showing the port closing at the very end:(edit, or I guess never opening)

    11:23:37.378 (ports 2): Begin, version=1.48-beta1
    11:23:37.378 (ports 2): USB device add...
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    Just re-downloaded and re-installed both. Now...

    Just re-downloaded and re-installed both. Now Arduino1.8.10 shows a more reasonable 855MB and the library callouts look better

    /Applications/Arduino.app/Contents/Java/arduino-builder -dump-prefs...
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    Yes, I installed all the libraries. However,...

    Yes, I installed all the libraries. However, looking at the Arduino file size its only 599MB where 1.8.9 is 785.6MB.

    Did you try to compile myT4WavDisplay.ino or some other sketch?
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    and here's the output from above in same setup...

    and here's the output from above in same setup which crashes the T4:


    /Applications/Arduino other versions/Arduino_1_8_10.app/Contents/Java/arduino-builder -dump-prefs -logger=machine -hardware...
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    here's the console output from blink.ini which...

    here's the console output from blink.ini which works:

    /Applications/Arduino other versions/Arduino_1_8_10.app/Contents/Java/arduino-builder -dump-prefs -logger=machine -hardware...
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    Here's an example of an issue. In the screenshot...

    Here's an example of an issue. In the screenshot you can see I have selected T4 and yet it has used Arduino libraries instead of Teensy. This results in T4 crash. This code works fine with...
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    Aside from the monitor speed stuff, on Mac...

    Aside from the monitor speed stuff, on Mac 10.14.6 I've had several issues with programs compiling and or running differently between Arduino 1.8.10-TD1.48B1 and 1.8.9-TD1.47, on both T4 and T3.6. I...
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    That 'Serial' means serial over USB I think. You...

    That 'Serial' means serial over USB I think. You still use the serial port. Perhaps you need to press the button on the Teensy to get it to show up in the ports for the 1st time per the...
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    ralphrmartin That is what's available now with...

    ralphrmartin
    That is what's available now with Teensy 4.0.

    FYI, 1.48 is Beta software, ie not ready for prime time. If your just starting with this you may want to go back to Arduino 1.8.9 and...
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    iMac 10.14.6, Arduino 1.8.10, TD 1.48 B1, on T4...

    iMac 10.14.6, Arduino 1.8.10, TD 1.48 B1, on T4
    After loading certain sketches the serial port goes away and won't come back until I compile something like blink and press the button. T4 crashes?
    ...
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    Frank, Have you gotten rid of the crackling? ...

    Frank,
    Have you gotten rid of the crackling?

    I had an issue where the T4 SCK pin13 was extremely sensitive just trying to play the 'WavFilePlayer'. The SCK would pick up some kind of noise and...
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    I'm trying to get the setup...

    I'm trying to get the setup here:https://forum.pjrc.com/threads/57421-Teensy4-Audio-Board?p=214104&viewfull=1#post214104

    to run the default audio board stuff like:
    SdCardTest, WavFilePlayer ect....
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    @DD4WH Here's what to do if you can't wait:...

    @DD4WH
    Here's what to do if you can't wait:
    https://forum.pjrc.com/threads/57421-Teensy4-Audio-Board?p=214104&viewfull=1#post214104
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    @mlinton, I have removed T3x's soldered...

    @mlinton,
    I have removed T3x's soldered similarly from a large board by grinding away the outside of the header with a grinding disk on a dremel tool just enough to be able to push the plastic back...
  30. @DerekR Thanks, that cleared things up. FYI...

    @DerekR

    Thanks, that cleared things up. FYI I had to move the #include "Arduino.h" above the #include "AudioStream.h" in AudioXcorr.h for it to compile. This may because I put the AudioXcorr.h...
  31. Almost: AudioLagComp.h AudioXcorr.cpp I...

    Almost:
    AudioLagComp.h AudioXcorr.cpp

    I tried changing the names around but looking at it the files are missing.
  32. @DerekR Think you might not have posted...

    @DerekR
    Think you might not have posted "AudioXcorr.h" and "AudioLagComp.h.cpp" ?
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    Here's my 7th attempt

    @PaulStoffregen
    After an hour or two (edit 2 or 3) of continuous effort I couldn't manage to make 'attempt 7' crash or refuse to open the terminal window !
    Gave up on the...
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    Here's a 6th try

    Slowing reducing the code to see what it takes to kill terminal window. Even with this in T4 just opening and closing the terminal window 5 times:


    void setup() {
    }

    void loop() {
    }
    ...
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    @Paul Had to mess around quit a while opening...

    @Paul

    Had to mess around quit a while opening and closing monitor window, recompiling, loading with terminal in various states until finally after pressing show timestamp and closed the window...
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    @Paul Trying rev 4. Using DejaVu.ino and...

    @Paul
    Trying rev 4. Using DejaVu.ino and repeatedly compiling, loading, changing ect. as before and haven't got any out of memory errors I do get:

    java.lang.InterruptedException: sleep...
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    I have no idea. Just thought you might have had...

    I have no idea. Just thought you might have had a brain fart:)
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    That screen shot shows Teensy 3.2 at bottom?

    That screen shot shows Teensy 3.2 at bottom?
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    Messing with my DejaVu.ino on Mac its seems worse...

    Messing with my DejaVu.ino on Mac its seems worse than try 2. Arduino will become unresponsive after only a few iterations of...
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    @Paul Tested your second try and really like it...

    @Paul
    Tested your second try and really like it as others have commented. You asked for issues so: Can still crash Arduino where memory is ~780MB CPU 350%.

    Here's a little more precisely how to...
  41. I found it and replied there:...

    I found it and replied there:
    https://forum.pjrc.com/threads/57167-Teensy-4-0-I2S-Support?p=212481&viewfull=1#post212481
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    see:...

    see: https://forum.pjrc.com/threads/57341-Bad-wiring-posted-somewhere-for-Teesny-4-0-to-Audio-Shield?p=213469&viewfull=1#post213469
  43. Bad wiring posted somewhere for Teesny 4.0 to Audio Shield

    I downloaded and printed this picture from this forum and found an error and would like to share but can't find where it came from.

    The error is the wire shown from Audio shield SCLK to Teensy4...
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    Thanks guys, that's a relief. I never realized...

    Thanks guys, that's a relief.

    I never realized that any pin would work, that would have made some of my 3.2 efforts much easier. I was doing as your link describes with buffers ect. with great...
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    Teensy 4.0 SPI Chip Select pins

    I don't understand how the CS pins work on the T4. On T3 there was one SPI bus but many CS pins to choose from for each peripheral.

    On T4 there are three SPI buses but only one CS pin for each.
    ...
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    Noticing others comments, I found its not how...

    Noticing others comments, I found its not how long you let the window or app sit running, it's how many times you let the monitor window overflow, close it, recompile, reload, overflow. In fact I...
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    :confused: Model Name: iMac Model...

    :confused:

    Model Name: iMac
    Model Identifier: iMac14,2
    Processor Name: Intel Core i5
    Processor Speed: 3.2 GHz
    Number of Processors: 1
    Total Number of Cores: 4
    L2 Cache (per...
  48. DD4WH Got your 2019_03_17 Convolution code to...

    DD4WH

    Got your 2019_03_17 Convolution code to compile on T4 by just eliminating this code:


    #ifndef __IMXRT1062__ //mdrT4_20190820 had to define out this to compile for Teensy 4
    for...
  49. I think the order is the first one it finds...

    I think the order is the first one it finds starting with:
    Your sketch folder, you can put library .h and .c here to make sure they are the ones used.
    Sketchbook/Library/
    if not found then
    Teensy...
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    There may be some confusion about mounting a...

    There may be some confusion about mounting a microSD card holder directly on the Teensy 4 board as in the 3.5 and 3.6. The board pad pitch is 1.0 mm. MicroSD cards and their connectors are 1.1 mm...
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